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| Main Author: | |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.00979 |
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Table of Contents:
- For any positive integer $n$, let $σ(n)$ be the sum of all positive divisors of $n.$ In this paper, it is proved that the set of positive integers $ n $ for which $ σ(30n+1)\geq σ(30n) $ has a density less than $ 0.0371813, $ which answers a recent problem of Pongsriiam in part.